| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.98 | 2.75 | 0.23 |
| Feb | 2.33 | 2.16 | 0.17 |
| Mar | 3.60 | 3.27 | 0.33 |
| Apr | 3.49 | 3.21 | 0.28 |
| May | 4.50 | 3.98 | 0.52 |
| Jun | 4.43 | 4.06 | 0.37 |
| Jul | 4.37 | 4.02 | 0.35 |
| Aug | 3.96 | 3.78 | 0.18 |
| Sep | 4.36 | 4.02 | 0.34 |
| Oct | 2.97 | 2.52 | 0.45 |
| Nov | 2.86 | 2.60 | 0.26 |
| Dec | 3.26 | 2.95 | 0.31 |
43.11 | 39.32 | 3.79 |